答案上是my aunt is very well 为什么是well,我觉得是good

答案上是my aunt is very well 为什么是well,我觉得是good 是very well /good? 改错：My English is quiet well.答案给的是：把well改为good 为什么?能不能讲下区别、都什 为什么是All is well 而不是All is good 是I play football very well还是I play football is very well?为什么 My English is very good还是well My aunt sings very well 为什么sing要加s very well 汉语是 And he speaks Chinese very well.为什么结尾是“well”? 到底是用 very well 还是very good? she is 是用 good 还是well 为什么说是I'm very well 而不说是I'm very good